{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process parameter", "enabling technology", "machine or equipment", "material", "application", "biomedical"], "input": "2.1 AM processes According to ISO/ASTM there are currently seven AM process categories that result in a 3D CAD model being formed into a solid , integrated part : Binder jetting : droplet printing of a liquid used to bind powder particles together ; Directed energy deposition : material is simultaneously fed into a moving focused energy region ; Material extrusion : material is fed through a nozzle in a liquid state after which solidifies ; Material jetting : material is jetted in liquid droplet form after which it solidifies ; Powder bed fusion : powder material is selectively heated so that the particles partially or fully melt to form a solid matrix ; Sheet lamination : sheets of material are bonded together either before or after the part outline is separated from the sheets ; Vat photopolymerisation : a platform is dropped through or raised above a vat of liquid resin where light is used to selectively solidify it ."}
{"process parameter": [], "enabling technology": [], "machine or equipment": ["nozzle", "platform", "vat"], "material": ["material", "powder material", "sheets", "resin"], "application": [], "biomedical": []}